The Exo Terra Natural Light is a 13W full spectrum daylight bulb designed specifically for terrariums and vivariums. This compact fluorescent lamp provides natural daylight simulation that promotes plant growth while creating optimal viewing conditions for reptiles and amphibians. Key features: • Full spectrum daylight simulation • 13W energy-efficient compact design • Promotes healthy plant growth • Standard E27 socket compatibility • Ideal for terrariums and vivariums • Natural color rendering for optimal viewing This bulb is part of the Repti Glo 2.0 Compact series, providing the perfect lighting solution for naturalistic terrariums. The full spectrum output helps stimulate natural behaviors in reptiles while supporting photosynthesis in terrarium plants. The compact design allows for easy installation in most standard terrarium fixtures. For best results, replace the bulb every 12 months even if it's still working, as the spectrum output diminishes over time.